diff --git a/src/main/java/org/apache/commons/math3/ode/events/EventFilter.java b/src/main/java/org/apache/commons/math3/ode/events/EventFilter.java
index 0c293e25f..1ce89f7a6 100644
--- a/src/main/java/org/apache/commons/math3/ode/events/EventFilter.java
+++ b/src/main/java/org/apache/commons/math3/ode/events/EventFilter.java
@@ -19,9 +19,6 @@ package org.apache.commons.math3.ode.events;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.ode.FirstOrderIntegrator;
-
-
 /** Wrapper used to detect only increasing or decreasing events.
  *
  * <p>General {@link EventHandler events} are defined implicitely
@@ -41,10 +38,11 @@ import org.apache.commons.math3.ode.FirstOrderIntegrator;
  *
  * <p>Users can wrap a regular {@link EventHandler event handler} in
  * an instance of this class and provide this wrapping instance to
- * the {@link FirstOrderIntegrator ODE solver} in order to avoid wasting
- * time looking for uninteresting events. The wrapper will intercept
- * the calls to the {@link EventHandler#g(double, double[]) g function}
- * and to the {@link EventHandler#eventOccurred(double, double[], boolean)
+ * the {@link org.apache.commons.math3.ode.FirstOrderIntegrator ODE solver}
+ * in order to avoid wasting time looking for uninteresting events.
+ * The wrapper will intercept the calls to the {@link
+ * EventHandler#g(double, double[]) g function} and to the {@link
+ * EventHandler#eventOccurred(double, double[], boolean)
  * eventOccurred} method in order to ignore uninteresting events. The
  * wrapped regular {@link EventHandler event handler} will the see only
  * the interesting events, i.e. either only {@code increasing} events or
diff --git a/src/main/java/org/apache/commons/math3/ode/events/FilterType.java b/src/main/java/org/apache/commons/math3/ode/events/FilterType.java
index c1a1e50f0..91d8bfcaf 100644
--- a/src/main/java/org/apache/commons/math3/ode/events/FilterType.java
+++ b/src/main/java/org/apache/commons/math3/ode/events/FilterType.java
@@ -18,8 +18,6 @@
 package org.apache.commons.math3.ode.events;
 
 import org.apache.commons.math3.exception.MathInternalError;
-import org.apache.commons.math3.util.Precision;
-
 
 /** Enumerate for {@link EventFilter filtering events}.
  *
@@ -72,7 +70,7 @@ public enum FilterType {
          *       \_/         \                         /         \_/         \
          *  ------ ---------- 0 ----------_---------- 0 --------------------- 0 ---
          *                     \         / \         /                         \
-         *   h=max(+s,-g,+g)    \       /   \       /       h=max(+s,-g,+g)     \    
+         *   h=max(+s,-g,+g)    \       /   \       /       h=max(+s,-g,+g)     \
          *                       \     /     \     / h=-g                        \     /
          *                        \___/       \___/                               \___/
          * </pre>
@@ -85,7 +83,7 @@ public enum FilterType {
          *   <li>h = min(-s,-g,+g)</li>
          *   <li>h = -g</li>
          * </ul>
-         * where s is a tiny positive value: {@link Precision#SAFE_MIN}.
+         * where s is a tiny positive value: {@link org.apache.commons.math3.util.Precision#SAFE_MIN}.
          * </p>
          */
         protected  Transformer selectTransformer(final Transformer previous,
@@ -261,7 +259,7 @@ public enum FilterType {
          *   <li>h = min(-s,-g,+g)</li>
          *   <li>h = -g</li>
          * </ul>
-         * where s is a tiny positive value: {@link Precision#SAFE_MIN}.
+         * where s is a tiny positive value: {@link org.apache.commons.math3.util.Precision#SAFE_MIN}.
          * </p>
          */
         protected  Transformer selectTransformer(final Transformer previous,